Processing technology of copper strip for touch switch

Abstract

The invention discloses a processing technology of a copper strip for a touch switch. The processing technology comprises the following steps: 1) preparing a copper strip blank; (2) primary surface pretreatment is conducted, specifically, a pneumatic disc type polishing machine with the model of X51 is selected for conducting polishing and deburring treatment on the surfaces of the manufactured blank A and the manufactured blank B; 3) casting; (4) carrying out secondary pretreatment on the surface; 5) cold rough rolling; (6) cold finish rolling; (7) tertiary surface treatment; (8) hot dipping treatment; (9) trimming and straightening; materials such as chromium, phosphorus, cerium and silver are added according to a proper proportion on the basis of a traditional blank with copper as a main material and zinc as an auxiliary material, so that the mechanical strength and the conductive efficiency of the copper strip are improved to a certain extent, the service life of the touch switch is effectively prolonged, meanwhile, three times of surface treatment are added in the preparation process, and the service life of the touch switch is prolonged. Blanks, semi-finished products and finished products are treated to different degrees, and then the quality of copper strips is effectively improved.

Description

Technical field [0001] The present invention relates to the field of preparation of touches the copper strip, and in particular, to a light touch and a copper strip processing process. Background technique [0002] The tact switch is divided into two major categories: using the metal reed as the switch contact piece, the contact is said, the contact resistance is small, and the cluster is 20mn. The hand feels, there is "tick" clear. The conductive rubber switch is called a conductive rubber switch using a conductive rubber as a contact path. Switch hands are good, but the contact resistance is large, generally at 100300n. The structure of the tangent switch is moved downward, allowing the contact reed or the conductive rubber block to contact the solder sheet, forming a path, the copper strip is one of the key components of the tanker switch, which plays a crucial conductive effect. [0003] In the preparation process of the existing light touch, the raw material is generally use...

AI Technical Summary

Problems solved by technology

[0003] In the existing preparation process of copper strips for tact switches, the raw materials generally use metal materials mainly composed of copper and supplemented by zinc blocks. After long-term use of this traditional blank, due to the oxidation of the metal surface and the Under the vibration caused by long-term external contact, its strength and wear resistance will decrease rapidly, thus affecting the service life of the tact switch. The processing of the mechanical structure leads to poor quality and weak toughness of the finished copper strip, so it is necessary to provide a copper strip processing technology for tact switches

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